EP2466984A1 - Procédé de communication et appareil pour mode à positions d'attente multiples dans un terminal de communication - Google Patents

Procédé de communication et appareil pour mode à positions d'attente multiples dans un terminal de communication Download PDF

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Publication number
EP2466984A1
EP2466984A1 EP11192958A EP11192958A EP2466984A1 EP 2466984 A1 EP2466984 A1 EP 2466984A1 EP 11192958 A EP11192958 A EP 11192958A EP 11192958 A EP11192958 A EP 11192958A EP 2466984 A1 EP2466984 A1 EP 2466984A1
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EP
European Patent Office
Prior art keywords
call mode
base station
call
communication
control unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11192958A
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German (de)
English (en)
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EP2466984B1 (fr
Inventor
Ga Ram Yu
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Publication of EP2466984A1 publication Critical patent/EP2466984A1/fr
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Publication of EP2466984B1 publication Critical patent/EP2466984B1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to a communication method and a communication apparatus in a communication terminal. More particularly, the present invention relates to a communication method and a communication apparatus for a multi-standby mode in a communication terminal.
  • communication terminals have various features to perform complex functions. Recently, communication terminals are being developed to have multiple modes to connect to at least two wireless communication networks. Such communication terminals can perform communication by accessing one of the communication networks according to a user's choice. In this case, the communication terminals may have difficulty in switching between the communication networks.
  • communication terminals capable of simultaneously accessing at least two communication networks provide a multi-standby mode.
  • the communication terminal receives a preamble or pilot signal from each communication network to determine a channel status.
  • the communication terminal transmits a paging signal to each communication network.
  • the communication terminal connects to each communication network using a single communication module.
  • the communication terminal handles a call through at least one of the communication networks using the communication module.
  • the communication terminal when a call is performed through one of the communication networks, a connection to other communication networks is terminated. This is because the communication module is used by the communication terminal for handling the call and thus the communication module is not available to maintain connections to other communication networks.
  • the communication terminal can be designed to include a plurality of communication modules to connect to the respective communication networks; however, such designs limit minimization of the communication terminal.
  • an aspect of the present invention is to provide a communication terminal that can connect to a plurality of communication networks using a single communication module. Aspects of the present invention also maintain a connection to other communication networks when a call is performed through one of the communication networks.
  • a communication method in a communication terminal having a single communication module and at least two Subscriber Identification Module (SIM) cards includes performing a first call mode when a call is connected through a first base station in a standby mode using the communication module and a first SIM card through a first time slot in each frame allocated by the first base station, and performing, when a second call is connected through a second base station while performing the first call mode, a second call mode using the communication module and a second SIM card through a second time slot in each frame allocated by the second base station, the second time slot being spaced apart from the first time slot.
  • SIM Subscriber Identification Module
  • a communication apparatus in a communication terminal includes a single communication module for connecting to at least two base stations, at least two SIM cards, each storing SIM information corresponding to one of the at least two base stations, and a control unit for performing, when a first call is connected through a first base station in a standby mode, a first call mode using the communication module and a first SIM card through a first time slot in each frame allocated by the first base station, and for performing, when a second call is connected through a second base station while performing the first call mode, a second call mode using the communication module and a second SIM card through a second time slot in each frame allocated by the second base station, the second time slot being spaced apart from the first time slot.
  • a method of communicating with at least two different communication networks via a single mobile device includes performing a first call mode via a first time slot of a frame when a call is connected through a first base station of a first communication network, when a second call is connected through a second base station of a second communication network while performing the first call mode, performing a second call mode via a second time slot of the frame, wherein the first time slot and the second time slots are both time slots of a frame.
  • a multiple standby mode can be performed with respect to a plurality of communication networks using a single communication module.
  • a standby mode can be performed with respect to other communication networks.
  • the communication terminal can maintain connection to the other communication networks.
  • FIG. 1 illustrates a structure of a communication system according to an exemplary embodiment of the present invention
  • FIG. 2 illustrates a configuration of a superframe in a communication system according to an exemplary embodiment of the present invention
  • FIG. 3 is a block diagram illustrating an internal configuration of a communication terminal according to an exemplary embodiment of the present invention
  • FIG. 4 is a flowchart illustrating a communication procedure in a communication terminal according to an exemplary embodiment of the present invention.
  • FIG. 5 is a flowchart illustrating a procedure of processing a second call during handling of a first call according to an exemplary embodiment of the present invention.
  • a communication terminal provides a multi-standby mode and can connect to at least one network that supports various communication methods including, for example, Code Division Multiple Access (CDMA), Global System for Mobile communications (GSM), Wideband CDMA (WCDMA), and Wireless Broadband internet (WiBro).
  • CDMA Code Division Multiple Access
  • GSM Global System for Mobile communications
  • WCDMA Wideband CDMA
  • WiBro Wireless Broadband internet
  • FIG. 1 illustrates a structure of a communication system according to an exemplary embodiment of the present invention.
  • the communication system includes a first base station 110, a second base station 120, and a communication terminal 130.
  • the first base station 110 supports connectivity to a first communication network.
  • the second base station 120 supports connectivity to a second communication network.
  • the communication terminal 130 accesses the first communication network and the second communication network by connecting to the first base station 110 and the second base station 120, respectively.
  • the communication terminal 130 periodically receives a preamble or pilot signal from the first base station 110 and the second base station 120 in a multi-standby mode.
  • the communication terminal 130 periodically transmits a paging signal to the first base station 110 and the second base station 120 in the multi-standby mode.
  • the communication terminal 130 may perform a call mode through at least one of the first base station 110 and the second base station 120. While performing the call mode through the first base station 110, the communication terminal 130 can maintain the standby mode with respect to the second base station 120.
  • the communication terminal 130 can transmit the paging signal to the second base station 120. Similarly, while performing the call mode through the second base station 120, the communication terminal 130 can maintain the standby mode with respect to the first base station 110.
  • the communication terminal 130 can transmit the paging signal to the first base station 110.
  • FIG. 2 illustrates a configuration of a superframe in a communication system according to an exemplary embodiment of the present invention.
  • the superframe is a basic unit that performs communication in a communication system.
  • the communication system supports Time Division Multiplexing (TDM).
  • TDM Time Division Multiplexing
  • the superframe includes a plurality of multiframes.
  • the superframe can have a length substantially corresponding to 6.12 seconds (s).
  • the superframe may include 51 multiframes or 26 multiframes.
  • Each of the multiframes has a plurality of subframes.
  • each of the multiframes may have a length substantially corresponding to 120 milliseconds (ms).
  • each of the multiframes may have a length substantially corresponding to 235.385 milliseconds (ms).
  • the multiframe may include 26 subframes.
  • Each of the subframes in turn includes a plurality of time slots.
  • each of the subframes can include 8 time slots.
  • the subframe can have a length substantially corresponding to 4,615 milliseconds (ms).
  • Each time slot of a subframe may have an index that is within a range of 0 to 7.
  • FIG. 3 is a block diagram illustrating an internal configuration of a communication terminal according to an exemplary embodiment of the present invention.
  • the communication terminal is a mobile phone.
  • the communication terminal 130 includes a wireless communication unit 310, a first subscriber identification module (SIM) card 320, a second SIM card 330, a memory 340, a control unit 350, an audio processing unit 360, a display unit 370, and a key input unit 380.
  • the communication terminal may also include additional and/or different units. Similarly, the functionality of two or more of the above units may be integrated into a single component.
  • the wireless communication unit 310 performs a wireless communication function of the communication terminal 130.
  • the wireless communication unit 310 performs communication using a communication protocol supported by the first communication network or the second communication network.
  • the wireless communication unit 310 wirelessly transmits and receives a signal with the first base station 110 and the second base station 120.
  • the wireless communication unit 310 includes a Radio Frequency (RF) transmitter, which performs a frequency up conversion and amplification of a transmission signal, and an RF receiver, which performs low noise amplification and a frequency down conversion of a received signal.
  • RF Radio Frequency
  • the first SIM card 320 and the second SIM card 330 support a wireless communication function of the communication terminal 130.
  • the first SIM card 320 supports communication with the first communication network
  • the second SIM card 330 supports communication with the second communication network.
  • the first SIM card 320 and the second SIM card 330 may be smart cards that store SIM information required to communicate with the first communication network 110 and second communication network 120, such as, for example, information about a subscriber, authentication, or related record of communication.
  • Data is managed in the first SIM card 320 and the second SIM card 330 by a file system that is built on a Master File (MF), a Dedicated File (DF) and an Elementary File (EF).
  • MF Master File
  • DF Dedicated File
  • EF Elementary File
  • the first SIM card 320 and the second SIM card 330 may be detachable from the communication terminal 130 using a card connection unit (not shown).
  • the memory 340 may include a program memory and a data memory.
  • the program memory stores programs for controlling a general operation of the communication terminal 130.
  • the program memory stores programs for a call waiting service according to an exemplary embodiment of the present invention.
  • the data memory stores data generated while executing programs.
  • the control unit 350 controls overall operations of the communication terminal 130.
  • the control unit 350 includes a data processing unit having a transmitter for encoding and modulating a transmission signal and a receiver for decoding and demodulating a received signal.
  • the data processing unit may also include a modem and a codec.
  • the codec may include a data codec for processing a packet data and an audio codec for processing an audio signal such as, for example, a voice.
  • the control unit 350 controls a wireless communication with the first communication network and the second communication network using the wireless communication unit 310 as a single communication module.
  • the control unit 350 also controls a wireless communication with the first communication network using the first SIM card 320 and a wireless communication with the second communication network using the second SIM card 330.
  • the control unit 350 is assigned the index of the time slot of each subframe by the first base station 110 and the second base station 120 for use in communication therebetween.
  • the time slot for the first base station 110 and the time slot for the second base station 120 in each subframe can be spaced apart from each other to have a maximum time interval therebetween. For example, in a certain subframe, when the time slot for the first base station 110 is indexed '0,' the time slot for the second base station 120 can be indexed '3.' The control unit 350 communicates with the first base station 110 and the second base station 120 through the respective time slot corresponding to the index for the first base station 110 and the second base station 120 in the subframe.
  • the control unit 350 performs a multi-standby mode for the first communication network and the second communication network according to the exemplary embodiment of the present invention.
  • the control unit 350 periodically receives the preamble or pilot signal from the first base station 110 and the second base station 120.
  • the control unit 350 periodically transmits the paging signal to the first base station 110 and the second base station 120.
  • the control unit 350 in a maximum capacity, may transmit the paging signal at a period of 470 ms.
  • the control unit 350 performs a call mode through at least one of the first base station 110 and the second base station 120 according to the exemplary embodiment of the present invention. While performing the call mode through the first base station 110, the control unit 350 may maintain the standby mode with respect to the second base station 120.
  • the control unit 350 periodically transmits the paging signal to the second base station 120. Similarly, while performing the call mode through the second base station 120, the control unit 350 may maintain the standby mode with respect to the first base station 110.
  • the communication terminal 130 periodically transmits the paging signal to the first base station 110.
  • the audio processing unit 360 plays a received audio signal outputted from the audio codec of the data processing unit by using a speaker SPK or transmits a transmission audio signal generated from a microphone MIC to the audio codec of the data processing unit.
  • the display unit 370 under the control of the control unit 350, displays the status of the communication terminal 130.
  • the display unit 370 may be implemented as a Liquid Crystal Display (LCD).
  • the display unit 370 may include an LCD control unit, a memory for storing a data to be displayed, and an LCD display unit.
  • the LCD may act as an input unit.
  • the key input unit 380 includes keys for inputting numeric and character information as well as various function keys.
  • FIG. 4 is a flowchart illustrating a communication procedure in a communication terminal according to an exemplary embodiment of the present invention.
  • the control unit 350 performs the multi-standby mode in step 411.
  • the control unit 350 is connected to the first base station 110 via the wireless communication unit 310 and the first SIM card 320.
  • the control unit 350 is connected to the second base station 120 via the wireless communication unit 310 and the second SIM card 330.
  • the control unit 350 is connected to the first base station 110 and the second base station 120 using the wireless communication unit 310 as a single communication module.
  • the control unit 350 periodically receives the preamble or pilot signal from the first base station 110 and the second base station 120.
  • the control unit 350 is assigned the index of the time slot by the first base station 110 and the second base station 120 for use in communication therebetween.
  • the control unit 350 transmits the paging signal to the first base station 110 and the second base station 120 from a certain subframe at a preset time period.
  • the control unit 350 may transmit the paging signal to the first base station 110 and the second base station 120 using the time slot having the index corresponding to the first base station 110 and the second base station 120, respectively.
  • the control unit 350 detects this event in step 413, and performs the call mode in step 415. If the call is connected with the first base station 110, the control unit 350 performs the call mode through the first base station 110. When the first base station 110 receives the call or the communication terminal 130 transmits the call to the first base station 110, the call can be connected to the communication terminal 130. The control unit 350 performs the call mode using the wireless communication unit 310 and the first SIM card 320. While performing the call mode through the first base station 110, the control unit 350 maintains the standby mode with respect to the second base station 120.
  • the control unit 350 not only performs the call mode through the first base station 110 via the wireless communication unit 310, but also maintains the standby mode with respect to the second base station 120.
  • the control unit 350 performs the call mode through the time slot for the first base station 110 and performs the standby mode through the time slot for the second base station 120.
  • the control unit 350 alternately uses the wireless communication unit 310 corresponding to the time slot for the first base station 110 and corresponding to the time slot for the second base station 120.
  • control unit 350 When the call is terminated while performing the call mode at step 415, the control unit 350 detects this event in step 417, and terminates the communication procedure.
  • the control unit 350 may detect the termination of the call when the first base station 110 terminates the call or the communication terminal 130 terminates the call.
  • the control unit 350 switches to the standby mode by terminating the call mode with respect to the first base station 110. In this manner, the control unit 350 performs the multi-standby mode.
  • the control unit 350 detects this event in step 419, and determines whether to perform a second call mode in step 421.
  • the second base station 120 receives the call or the communication terminal 130 transmits the call to the second base station 120, the communication terminal 130 can be connected to the second call.
  • the control unit 350 determines whether to perform the second call mode with the second base station 120.
  • the control unit 350 may display a screen through the display unit 370 to inquire whether to perform the second call mode.
  • the control unit 350 may then determine whether to perform the second call mode according to a command received through the key input unit 380 or a touch screen.
  • the control unit 350 transmits a notification message to notify that a first call is being performed in step 423, and returns to step 415.
  • the control unit 350 notifies the second base station 120 through the notification message that the second call is not to be handled. In this case, the control unit 350 transmits the notification message to the second base station 120.
  • the control unit 350 may transmit the notification message using a Short Message Service (SMS).
  • SMS Short Message Service
  • the control unit 350 When it is determined that the second call mode needs to be performed at step 421, the control unit 350 performs the second call mode in step 425.
  • the control unit 350 performs the second call mode through the second base station 120 using the wireless communication unit 310.
  • the control unit 350 performs the second call mode through the time slot having the index corresponding to the second base station 120. An operation of performing the second call mode by the control unit 350 is described below.
  • FIG. 5 is a flowchart illustrating a procedure of processing a second call during handling of a first call according to an exemplary embodiment of the present invention.
  • the control unit 350 determines whether to terminate a first call mode in step 511.
  • the control unit 350 can display a message through the display unit 370 to inquire whether to terminate the first call mode.
  • the control unit 350 may determine whether to terminate the first call mode according to the command received through the key input unit 380 or the touch screen.
  • the control unit 350 terminates the first call mode in step 513.
  • the control unit 350 cancels a call connection with the first base station 110, and switches to the standby mode with respect to the first base station 110.
  • the control unit 350 After performing the second call mode in step 515, the control unit 350 returns to the procedure in FIG. 4 .
  • the control unit 350 performs the second call mode through the second base station 120.
  • the control unit 350 performs the second call mode via the wireless communication unit 310 and the second SIM card 330.
  • the control unit 350 maintains the standby mode with respect to the first base station 110.
  • the control unit 350 not only performs the second call mode through the second base station 120 using the wireless communication unit 310 but also performs the standby mode with respect to the first base station 110.
  • the control unit 350 performs the second call mode through the time slot for the second base station 120 and performs the standby mode through the time slot for the first base station 110.
  • the control unit 350 alternately uses the wireless communication unit 310 corresponding to the time slot for the first base station 110 and corresponding to the time slot for the second base station 120.
  • the control unit 350 performs the second call mode in step 517. Namely, while performing the first call mode through the first base station 110, the control unit 350 performs the second call mode through the second base station 120. The control unit 350 performs the second call mode via the wireless communication unit 310 and the second SIM card 330. The control unit 350 not only performs the first call mode through the first base station 110 through the wireless communication unit 310 but also performs the second call mode through the second base station 120. The control unit 350 performs the first call mode through the time slot having the index corresponding to the first base station 110 and performs the second call mode through the time slot having the index corresponding to the second base station 120. The control unit 350 alternately uses the wireless communication unit 310 corresponding to the time slot for the first base station 110 and corresponding to the time slot for the second base station 120.
  • control unit 350 can perform a multi-party call through the first base station 110 and the second base station 120 using a single communication module.
  • the control unit 350 utilizes the time slots of each subframe that are separately assigned to the first base station 110 and the second base station 120 in communication therewith, thereby performing the multi-party call.
  • an echo component may occur due to a time delay between audio signals transmitted from the control unit 350 to the first base station 110 and to the second base station 120.
  • An audio signal to be transmitted to the second base station 120 may be introduced to the time slot for the first base station 110.
  • an audio signal to be transmitted to the first base station 110 may be introduced to the time slot for the second base station 120.
  • the control unit 350 may remove the echo component.
  • the control unit 350 may predict a magnitude of the echo component and calculate a constant to be added or subtracted corresponding to the predicted magnitude of the echo component.
  • the echo component may be removed by a counterpart communication terminal (not shown) that is connected through the first base station 110 or the second base station 120.
  • the counterpart communication terminal may predict the magnitude of the echo component and calculate the constant to be added or subtracted corresponding to the predicted magnitude of the echo component.
  • control unit 350 detects this event in step 519, and proceeds to step 515.
  • the control unit 350 may detect the termination of the first call when the first base station 110 terminates the first call or the communication terminal 130 terminates the first call.
  • the control unit 350 terminates the first call mode corresponding to the first base station 110 and switches to the standby mode.
  • control unit 350 detects this event in step 427, and terminates the communication process.
  • the control unit 350 may detect termination of the second call when the second base station 120 terminates the second call or the communication terminal 130 terminates the second call.
  • the control unit 350 terminates the second call mode corresponding to the second base station 120 and switches to the standby mode.
  • the control unit 350 When a third call is connected while performing the second call mode at step 425, the control unit 350 returns to step 419.
  • the call mode being currently performed can be treated as the first call mode and a third call mode to be performed can be treated as the second call mode.
  • a multiple standby mode can be performed with respect to a plurality of communication networks using a single communication module.
  • a standby mode can be performed with respect to other communication networks.
  • the communication terminal can maintain a connection to the other communication networks.
EP11192958.4A 2010-12-20 2011-12-12 Procédé de communication et appareil pour mode à positions d'attente multiples dans un terminal de communication Active EP2466984B1 (fr)

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KR1020100130456A KR20120069074A (ko) 2010-12-20 2010-12-20 다중 수신 대기를 위한 통신 단말기의 통신 방법 및 장치

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CN104509202A (zh) * 2012-08-03 2015-04-08 高通股份有限公司 在多sim设备中组合语音呼叫
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JP2017153097A (ja) * 2012-08-03 2017-08-31 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ マルチｓｉｍデバイスにおける音声呼の結合
CN104509202B (zh) * 2012-08-03 2018-10-19 高通股份有限公司 在多sim设备中组合语音呼叫
WO2015023543A1 (fr) * 2013-08-12 2015-02-19 Qualcomm Incorporated Dispositifs et procédés d'établissement de trajets de communication dépourvus de transcodeur comportant des dispositifs multi-sim
CN104270361A (zh) * 2014-09-29 2015-01-07 北京云漫游科技有限公司 一种利用sim认证终端合法后入网的方法
CN105493482A (zh) * 2015-10-23 2016-04-13 陈银芳 移动终端的通信方法及系统
WO2017066977A1 (fr) * 2015-10-23 2017-04-27 陈银芳 Procédé et système de communication de terminal mobile
CN112312565A (zh) * 2020-10-30 2021-02-02 紫光展锐(重庆)科技有限公司 通信处理方法、设备、装置及存储介质
CN112312565B (zh) * 2020-10-30 2023-03-24 紫光展锐(重庆)科技有限公司 通信处理方法、设备、装置及存储介质

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US20120157072A1 (en) 2012-06-21
KR20120069074A (ko) 2012-06-28
US8862078B2 (en) 2014-10-14

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